-1-5r=-7(-1r+2)+1

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Solution for -1-5r=-7(-1r+2)+1 equation:


Simplifying
-1 + -5r = -7(-1r + 2) + 1

Reorder the terms:
-1 + -5r = -7(2 + -1r) + 1
-1 + -5r = (2 * -7 + -1r * -7) + 1
-1 + -5r = (-14 + 7r) + 1

Reorder the terms:
-1 + -5r = -14 + 1 + 7r

Combine like terms: -14 + 1 = -13
-1 + -5r = -13 + 7r

Solving
-1 + -5r = -13 + 7r

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-7r' to each side of the equation.
-1 + -5r + -7r = -13 + 7r + -7r

Combine like terms: -5r + -7r = -12r
-1 + -12r = -13 + 7r + -7r

Combine like terms: 7r + -7r = 0
-1 + -12r = -13 + 0
-1 + -12r = -13

Add '1' to each side of the equation.
-1 + 1 + -12r = -13 + 1

Combine like terms: -1 + 1 = 0
0 + -12r = -13 + 1
-12r = -13 + 1

Combine like terms: -13 + 1 = -12
-12r = -12

Divide each side by '-12'.
r = 1

Simplifying
r = 1

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